Hey guys - i have ugly brown ice dams on one section of my roof and have no idea why.
Please see attached images.
They originate in one spot between the edge of addition roof and original house roof.
The dormer right above brown ice dams has a bathroom, and a bat tub right in that corner.
Also the space between addition and og house is like VENTED attic space. From inside that space i can see light - exact spot where brown ice dam starts.
Here is attic space:
I dont think bath tub is leaking and its not used much… I will look though…
BTW… this never happened before. Just during the last big snow.